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Manufacturing method for improving cupping value of 3104 aluminum alloy strip

A manufacturing method and technology of aluminum alloy strips, applied in the field of aluminum alloy materials, can solve the problems of 3104 aluminum alloy strip stamping and forming cracks, cupping value not up to standard, etc., to overcome easy cracking, excellent cupping value, and improve deep drawing performance effect

Active Publication Date: 2015-01-21
DALISHEN ALUMINUM
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AI Technical Summary

Problems solved by technology

[0004] At present, because the cupping value does not meet the standard, the stamping and forming of 3104 aluminum alloy strips is a major problem for domestic aluminum strip production enterprises.

Method used

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Examples

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Embodiment Construction

[0024] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples, which are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0025] As shown in the examples, the present invention is a manufacturing method for improving the cupping value of a 3104 aluminum alloy strip, and the manufacturing method includes the following steps:

[0026] (1) Ingredients: The following weight percentage materials are used for alloy proportioning, that is, Si is 0.17-0.25%, Fe is 0.35-0.45%, Cu is 0.15-0.2%, Mn is 0.85-0.95%, and Mg is 1.15-1.25% %, Zn is ≤0.1%, RE (rare earth element) is 0.005~0.02%, Ti is ≤0.1%, and the balance is Al;

[0027] Embodiment 1, its alloy proportion of 3104 aluminum alloy strip, by mass percentage, is as follows:

[0028] Si is 0.25%, Fe is 0.45%, Cu is 0.2%, Mn is 0.95%, Mg is 1.25%, Zn is 0.1%, RE (rare eart...

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Abstract

The invention provides a manufacturing method for improving cupping value of a 3104 aluminum alloy strip. In the smelting process of 3104 aluminum alloy, the mass accounted by chemical components of the 3104 aluminum alloy in aluminum alloy raw materials is adjusted and optimized again; compared with the cupping value index of an aluminum alloy strip obtained through conventional chemical components and the subsequent treatment technology, the cupping value index of the aluminum alloy strip obtained through treatment of conventional working procedures of refining, grain refinement, degassing, filtering, casting, saw cutting, milling, homogenization heating, hot rolling, cold rolling, cleaning, side cutting, finished product perfect recrystallization annealing, inspecting packing and the like is greatly improved. The defect that the 3104 aluminum alloy strip produced through the conventional chemical components is prone to cracking after stamping is overcome, and therefore the deep drawability of 3104 alloy materials is improved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy materials, and in particular relates to a method for increasing the cupping value of 3104 aluminum alloy strips. Background technique [0002] Good deep drawing performance is the key to ensure the smooth stamping and forming of 3104 aluminum alloy strips for "LED TV backplanes, capacitor casings, lamp holders" and other electronic and electrical components. [0003] The cupping test, also known as the Ericsson test, is a stamping process performance test and a test method used to measure the deep drawing performance of metal materials. The test results obtained from the cupping test - the larger the cupping value (IE), the better the deep drawing performance of the material. [0004] At present, because the cupping value is not up to the standard, the stamping and forming of 3104 aluminum alloy strip is broken, which is a major problem for domestic aluminum strip production enterprise...

Claims

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Application Information

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IPC IPC(8): C22F1/047C22C21/08
CPCC22C1/06C22C21/08C22F1/047
Inventor 曹晓国曹旷
Owner DALISHEN ALUMINUM
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